Arriving to an ancient city of Zaragoza, which name derives from Caesar Agustus, was a bit strange jump from almost freezing night at Preston to +25C in Spain. Luckily, on the first evening there was a refreshing rain :-). The day of arrival was the end of the most important celebration in the city, veneration of Our Lady of the Pillar with a mountain of flowers next to a very impressive and rich cathedral. Streets, caffes were so full of people so you needed almost to squeeze in. The workshop was outside the city centre in a calm environment of super modern nano-science research buildings.